(1) On and from the appointed day, there shall be added to the Union territory of Himachal Pradesh the territories in the existing State of Punjab comprised in—
(a) Simla, Kangra, Kulu and Lahaul and Spiti districts;
(b) Nalagarh tahsil of Ambala district;
(c) Lohara, Amb and Una kanungo circles of Una tahsil of Hoshiarpur district;
(d) the territories in Santokhgarh kanungo circle of Una tahsil of Hoshiarpur district specified in Part I of the Third Schedule;
(e) the territories in Una tahsil of Hoshiarpur district specified in Part II of the Third Schedule; and
(f) the territories of Dhar Kalan kanungo circle of Pathankot tahsil of Gurdaspur district specified in Part III of the Third Schedule,
and thereupon the said territories shall cease to form part of the existing State of Punjab.
(2) The territories referred to in clause (b) of sub-section (1) shall be included in, and form part of, Simla district.
(3) The territories referred to in clauses (c), (d) and (e) of sub-section (1) shall be included in, and form part of, Kangra district, and
(i) the territories referred to in clauses (c) and (d) shall form a separate tahsil known as Una tahsil in that district and in that tahsil the territories referred to in clause (d) shall form a separate kanungo circle known as the Santokhgarh kanungo circle; and
(ii) the territories referred to in clause (e) shall form part of the Hamirpur tahsil in the said district.
(4) The territories referred to in clause (f) of sub-section (1) shall be included in, and form part of, the Bhattiyat tahsil of Chamba district in the Union territory of Himachal Pradesh and in that tahsil, the villages Dalhousie and Balun shall be included in, and form part of, Banikhet kanungo circle and the village Bakloh shall form part of Chowari kanungo circle.